Smartphone case



FIG. 1 is a front, right, and bottom perspective view of a smartphone case showing my new design;

FIG. 2 is a front, left, and bottom perspective view thereof;

FIG. 3 is a front, right, and bottom perspective view thereof, in which cover portions on the bottom side are open;

FIG. 4 is a front, left, and bottom perspective view thereof, in which cover portions on the bottom side are open;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is left side view thereof;

FIG. 8 is right side view thereof;

FIG. 9 is a top plan view thereof; and,

FIG. 10 is a bottom plan view thereof.

The broken line showing is for the purpose of illustrating portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a smartphone case, as shown and described. 